<template>
	<div class="mui-numbox" data-numbox-min='1' style="height:25px">
		<button class="mui-btn mui-btn-numbox-minus" type="button">-</button>
		<input id="test" 
		class="mui-input-numbox" 
		type="number" 
		value="initcount" 
		@change="countChanged"
		ref="numbox"
		readonly
		/>
		<button class="mui-btn mui-btn-numbox-plus" type="button">+</button>
	</div>

	<!-- 
		分析：子组件什么时候把数据传递给父组件
	-->
</template>
<script>
import mui from '../../lib/mui/js/mui.min.js'
export default {
  mounted(){
    //初始化数字选择框组件
    mui('.mui-numbox').numbox()
	},
	methods:{
		//每当文本框的数据被修改的时候，立即把最新的数据，通过事件调用，传递给父组件
		countChanged(){
			this.$emit('getcount', parseInt(this.$refs.numbox.value))
		}
	},
	props:["initcount", "goodsid"],
	watch:{
		//属性监听
		'max':function (newVal, oldVal) { 
			mui(".mui-numbox").numbox().setOption('max',newVal)
		 }
	}
}
</script>
<style lang="scss" scoped>

</style>

